TK-880/H (UHF) mobile service manual - The Repeater Builder's ...
TK-880/H (UHF) mobile service manual - The Repeater Builder's ...
TK-880/H (UHF) mobile service manual - The Repeater Builder's ...
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INSTALLATION<br />
<strong>TK</strong>-<strong>880</strong>/H<br />
1-3. Data Equipment Connection<br />
<strong>The</strong> jumpers must be set to either one for each function.<br />
Otherwise, the radio will not work properly.<br />
AHK/BUSY<br />
R64 (0Ω) R18 (0Ω)<br />
Function<br />
Yes No BUSY System busy output indicates if no<br />
repeater channel is available in the<br />
currently selected LTR system<br />
when PTT is pressed, active low<br />
: Default<br />
No Yes AHK MIC hook input.<br />
ME/AM<br />
R12 (0Ω) R167 (0Ω)<br />
Function<br />
Yes No AM Speaker mute input, active high<br />
: Default<br />
No Yes ME MIC ground.<br />
MI/TXS<br />
R94 (0Ω) R24 (0Ω)<br />
Function<br />
Yes No TXS Transmitter sense output, active<br />
high : Default<br />
No Yes MI Internal MIC input.<br />
LOK/AM<br />
R5 (0Ω) R6 (0Ω) Function<br />
Yes No AM Audio mute signal input.<br />
No Yes LOK Link complete pulse output : Default<br />
DTC/LOK/TXS/FSW<br />
R168 R84 R51 R13 Function<br />
(0Ω) (0Ω) (0Ω) (0Ω)<br />
No No No Yes LOK Link complete pulse output.<br />
Yes No No No DTC Data control channel signal input,<br />
Data channel : low (Default)<br />
No No Yes No TXS Transmitter sense output,<br />
active high<br />
No Yes No No FSW Foot switch input, active low<br />
R51<br />
R13<br />
R167<br />
R12<br />
R94<br />
R24<br />
R168<br />
TX-RX unit (A/2)<br />
Foil side view<br />
R18<br />
R64<br />
R84<br />
2. Accessory Terminal<br />
2-1. Terminal Function<br />
Connector Pin Pin I/O Function<br />
No. No. name<br />
CN1 1 DEO O Detect signal output. (Output level :<br />
(DO) 250mVrms; standard modulation)<br />
2 AHK I External hook signal input.<br />
(AH) “COM2” port must be select “AUX<br />
HOOK/PTT” / “DATA PTT” function<br />
in the KPG-49D.<br />
On hook : L, Off hook : H<br />
BUSY O System busy signal output for<br />
trunking system. No vacant repeater<br />
: L, Vacant repeater : H<br />
RXD2 I Serial data input 2.<br />
“COM2” port must be select<br />
“REM” / “DATA” / “DATA+GPS”<br />
function in the KPG-49D.<br />
3 IGN (IG) I Ignition input for KCT-18.<br />
4 DI I External modulation signal input.<br />
5 ME – MIC earth.<br />
AM I Audio mute signal input.<br />
6 MI I Internal MIC input.<br />
TXS O Signal indicating whether the<br />
transceiver is transmitting or not.<br />
TX : H, Another : L<br />
7 PTT I External PTT signal input.<br />
(PT) “COM2” port must be select<br />
“AUX HOOK/PTT” / “DATA PTT”<br />
function in the KPG-49D.<br />
TX : L, Another : H<br />
TXD2 O Serial data output 2.<br />
“COM2” port must be select<br />
“REM” / “DATA” / “DATA+GPS”<br />
function in the KPG-49D.<br />
R6<br />
R5<br />
TX-RX unit (A/2)<br />
Component side view<br />
Note : <strong>The</strong> following parts are not installed at the time of<br />
shipping; R5,R13,R18,R24,R51,R84,R167<br />
21